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Table of Contents
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Tip
titleDeckard's Dream Synthesizer

Hi all, this is the place to find the latest building documents for Black Corporation's Deckard's Dream polyphonic synthesizer.

Currently, this project is at rev 1.0, PCB's are currently being released to builders. (18.Oct. 2017) and are being constructed.

A new PCB version rev. 2.1 was released end of 2018, this page is only for rev.1.x

the REV.2.0 guide is here DDRM rev.2 guide

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Technical Specs: (click to expand)

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Synthesizer features

  • 8-voice polyphonic analogue synthesizer
  • Fully analogue signal path
  • 2 synthesis layers per voice
  • 256 presets

Layer architecture

  • VCO with square, saw and sine waveforms
  • PWM with sine-wave LFO
  • Manual PW (50-90%)
  • 12dB HP and LP discrete filters with separate resonance controls
  • ADSR filter envelope with adjustable initial and attack levels
  • ADSR VCA envelope
  • Velocity and aftertouch controls for filter brilliance and volume levels

Master controls

  • Global coarse/fine tune
  • VCO2 detune
  • LFO with sine, saw, ramp, square and stepped random waveforms
  • LFO destinations: VCO, VCF, VCA
  • Crossfade between layers 1 and 2
  • Global filter brilliance and resonance control for additional resonance
  • Polyphonic aftertouch destinations: LFO speed, LFO to VCO amount, LFO to VCF amount, filter brilliance, volume level
  • Keyboard tracking adjustment for VCF and VCA

Controls

  • MIDI/MPE with polyphonic aftertouch
  • Polyphonic pitchbend
  • Unison
  • MIDI over USB
  • 128 factory and 128 user presets
  • Alternate scales and tunings
  • Software editor by Spektro Audio

Display

  • 128×64 OLED display

Connectors

  • DC input jack (9-24V)
  • External modulation input jack (1/4″)
  • Expander jack (DIN5)
  • USB jack (type B, device/host)
  • MIDI IN jack (DIN5)
  • MIDI THRU jack (DIN5)
  • AUDIO OUT LOW jack (1/4″)

  • AUDIO OUT HIGH jack (1/4″)

Physical specifications*   the DIY VERSION is different for the depth and weight

  • 19″ 4U rack-mount
  • Width: 483mm / 19″
  • Height: 178mm / 7″
  • Depth: 200mm / 7.8″
  • Weight: ~ 4.8 kg / 10.6 lbs incl external PSU brick.


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